PENG Bo,LIAN Dong-yin,ZHANG Guang-ping,et al.Xiaojindan Extract Modulated Macrophage Polarization by Targeting PI3K/Akt Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(09):36-42.
To explore the effect and mechanism of Xiaojindan extract (XJD) on macrophage polarization.
Method
2
Lipopolysaccharide (LPS) and interleukin-4 (IL-4) were used to induce M1 and M2 polarization of RAW264.7 cells. The influence of 10-80 mg·L
-1
XJD on cell proliferation was detected by Cell Counting Kit-8 (CCK-8) assay. Nitric oxide (NO) and interleukin-6 (IL-6) release was explored by Griess assay and enzyme-linked immunosorbent assay (ELISA), respectively. The mRNA expression of M1 and M2 macrophage markers was measured by real-time quantitative polymerase chain reaction (Real-time PCR), and the CD206
+
expression was determined by flow cytometry. The activation of phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) pathway was analyzed by western blot.
Result
2
10-80 mg·L
-1
XJD showed no marked cytotoxicity in LPS (0.5 mg·L
-1
)- or IL-4 (20 μg·L
-1
)-induced RAW264.7 cells. Compared with the control group, LPS significantly promoted the expression of M1 macrophage markers (
P
<
0.01), including increased NO and IL-6 release (
P
<
0.01) and upregulated mRNA expression of interleukin-1
0.01). Compared with LPS-induced group, 20-80 mg·L
-1
XJD decreased the release of NO and IL-6 in a dose-dependent manner (
P
<
0.01), and similarly 10-80 mg·L
-1
XJD suppressed the mRNA expression of IL-1
β
, iNOS, COX-2 and TNF-
α
(
P
<
0.01). Compared with the control group, IL-4 obviously increased the expression of M2 macrophage markers (
P
<
0.01), including increased CD206
+
cell population and upregulated mRNA expression of arginine-1 (Arg-1), interleukin-10 (IL-10), interleukin-13 (IL-13) and transforming growth factor-
β
1
(TGF-
β
1
). Compared with IL-4-induced group, 10-80 mg·L
-1
XJD dose-dependently decreased CD206
+
cell population (
P
<
0.01) and inhibited the mRNA expression of Arg-1, IL-10, IL-13 and TGF-
β
1
(
P
<
0.01). Western blot showed that XJD significantly downregulated the activation of PI3K/Akt pathway as compared to LPS- and IL-4-induced groups (
P
<
0.05,
P
<
0.01).
Conclusion
2
XJD significantly inhibited the macrophage polarization in the LPS- and IL-4-induced RAW264.7 cells by targeting PI3K/Akt pathway.
关键词
Keywords
references
GORDON S , TAYLOR P R . Monocyte and macrophage heterogeneity [J]. Nat Rev Immunol , 2005 , 5 ( 12 ): 953 - 964 .
LARIONOVA I , TUGUZBAEVA G , PONOMARYOVA A , et al . Tumor-associated macrophages in human breast, colorectal, lung, ovarian and prostate cancers [J]. Front Oncol , 2020 , 10 : 566511 .
WU K , LIN K , LI X , et al . Redefining tumor-associated macrophage subpopulations and functions in the tumor microenvironment [J]. Front Immunol , 2020 , 11 : 1731 .
CAO B , LIN J , WU Z , et al . Mechanisms exploration of Xiaojin pills on lung cancer based on metabolomics and network pharmacology [J]. J Pharm Pharmacol , 2021 , 73 ( 8 ): 1071 - 1079 .
KRNETA T , GILLGRASS A , ASHKAR A A . The influence of macrophages and the tumor microenvironment on natural killer cells [J]. Curr Mol Med , 2013 , 13 ( 1 ): 68 - 79 .
NYIRAMANA M M , CHO S B , KIM E J , et al . Sea hare hydrolysate-induced reduction of human non-small cell lung cancer cell growth through regulation of macrophage polarization and non-apoptotic regulated cell death pathways [J]. Cancers (Basel) , 2020 , 12 ( 3 ): 726 .
ISLAM S U , LEE J H , SHEHZAD A , et al . Decursinol angelate inhibits LPS-induced macrophage polarization through modulation of the NF- κ B and MAPK signaling pathways [J]. Molecules , 2018 , 23 ( 8 ): 1880 .
COSTA R , HAN H S , GRADISHAR W J . Targeting the PI3K/Akt/mTOR pathway in triple-negative breast cancer: A review [J]. Breast Cancer Res Treat , 2018 , 169 ( 3 ): 397 - 406 .
VERGADI E , IERONYMAKI E , LYRONI K , et al . Akt signaling pathway in macrophage activation and M1/M2 polarization [J]. J Immunol , 2017 , 198 ( 3 ): 1006 - 1014 .